Liquid-dispensing machine



Feb. 3, 1931. c, w, CAREY- 1,791,349

LIQUID DISPENSING MACHINE Filed April 2, 1927 2 SheetsSheet 1 l GALLON? L.

INVENTOR ATTORNEYS Feb. 3, 1931,. c. W.-CAREY LIQUID DISPENSING MACHINE 2 Sheets-Sheet 2 Filed April 2, 1927 r INVENTQR CI Wi-CEar'e -y,

ATTORNEYS WITNESS Patented Feb; 3, l dll LIQU-DISPENSING MACHINE Application filed April 2,

The invention relates to a device adapted to be attached to machines fordispensing liquids, and more specifically relates to a device to indicate the amount of liquid withdrawn t3 from the container; more particularly the invention pertains to a device for readily showing the amount of liquid so withdrawn, and the cost of the same to the purchaser. v

' The invention is applicable especially to to the pumps employed in gasoline filling stations, providing a ready means for the purchaser of the gasoline toascertain the amount of liquid withdrawn, with a corresponding price of the quantity.

These means consist of a scale graduated in the amount of liquid withdrawn, each graduation being placed opposite the current price for the given quantity. Price variations from day to day may be taken care of by mahng the price scale removable and also by providing polygonal supports for the said scale, difi'erent scales being mounted upon each side of the said polygonal support-.-

The invention is illustrated in the accompanying drawings in which:

Figure 1 represents a device mounted in pperative position with respect to a gasoline pump of the usual construction,

Figure 2 shows a view ofthp device itself removed from the support, and illustrating the scale of quantity and scale of price provided for said device, 7

Figure 3 is a view on the line 3-3 of Figure 2 showing a means of mounting the price scale and its carrier,

Figure 4 is a section taken on the line H of Figure 3, showing the general shape of the support for the price scales and the means holding the scales upon said support,

dill

ing the mounting of the price scale support,

Figure 6 is'a longitudinal section through which acts asa supporting member for the Figure 5 is a rear .view of the device show-'.

em. Serial No. 180,532.

tube 1 and also protects the tube against breakage. Within the tube 1, which tube is oftransparent material insoluble in the li uid employed, is, inserted a tube 6 whic reaches almost to the bottom of the tube 1. This'tube 1 may conveniently be'formed of glass. The holder 10 is provided with a vertically extending longitudinal sight opening 10 so that the glass or transparent tube may be viewed. Reading from the pump to the device is the pipe 9 which is inserted into the tube 6 a comparatively short distance from the top thereof. Secured in any convenient way to the member 10 are the wings 4 usually of metal, this member a carrying the scale 3 to indicate the quantity of liquid withdrawn and also the scale 2 showing the price of each unit of the quantity of the material. The elements of these scales are clearly shown in the drawings in Figures 1 and 2. The Wings at may be made integral with support 10, or they may be rigidly secured thereto in any convenient manner.- The device is conveniently mounted on a support 5' as shown in Figure 1, the mounting being secured by convenient means such as threads 7 in the member 10, these threads coacting with threads in the support 5. At the bottom of the member 10 is usually provided a member 8, which serves as a packing holding the tube 1 out of con tact with support 5, retaining the tube 1 in 1 position and preventing the same from being broken by forcibly dropping against the support 5 or from sliding from the member 10. The member 11 is mounted on a support by any convenient means as shown in the drawings, which mounting is conveniently done by means of the rivet 13 extending through the brackets 12 secured to one of the wings a.

upon this support 11, the support being shown in Figure 4 as being provided with lugs 14: between each pair of which the scale may he placed. I It will be seen that the member 10 is broken away, so a portion of the tube 1 may be ren- Jdered visible this being arranged so that the The scale 2 may be conveniently mounted I liquid levelin the tube 1 be readily compared with the scales adjacent the tube.

In the operation of device, colored 2 i veneee 1i uid of any convenient hind is placed in the tu e 1 until it is level corresponding to the one gallon merit on the scale when the dispensing chamber is with liquid. When the tank 15 is loeinp; filled, the liquid rising therein causes the displacement air from the tank. As the air is displaced, air pressure is communicated to the transparent tuhe l by way of the pipe 9. This pressure acting on the colored liquid causes the latter to rise in the tube 1 to correspond to the height of the liquid contained in the 15. As the liquid is displaced within the tank 15, the colored liquid lowers in the-transparent tuloe, accordingly. The price of the liquid so withdrawn is shown loy the corresponding price value on the scale 2. lhe support 11 carrying the price scale may he inountedupon therivet 13 so that'the price variations may he retained by providing different scales for each face of the support 11 or rotating the proper scale into position.

It will thus he seen that the device provides a ready means tor showing the amount of liquid Withdrawn from the container,' for instance pumps together with the price thereof.

The description alcove is to be regarded as being illustrative only. Modifications of the device being permissible in obvious manner. The scope of the invention is defined hy the following claim.

I claim:

In a liquid-level indicating gauge, a pe destal having an interiorly threaded recess n its upper face, a packin element received in the recess, a vertically disposed tubular casing havin its lower end threadedl engaged with the t reads of the recess and having an inwardly directed annular flange formed on its upper end, a transparent tube received within the casing and having its lower end closed and resting upon the paclnTng element and its upper end abutting the annular flange, a pressure responsive liquid in the transparent tube, and a pressure conducting pipe arranged concentrically in the transparent tube and having its upper end projecting from the upper end of the casing a LES W. (CAREY. 

